[Pkg-privacy-commits] [msva-perl] 134/356: still more keyserver and local checking re-organization

[Ximin Luo]

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infinity0 pushed a commit to branch debian
in repository msva-perl.

commit 9a7f0ec1c3c193f8db38ab03089fdcf7b75dae55
Author: Daniel Kahn Gillmor <dkg at fifthhorseman.net>
Date:   Sun Oct 3 01:49:58 2010 -0400

    still more keyserver and local checking re-organization
---
 msva-perl | 49 ++++++++++++++++++++++++++-----------------------
 1 file changed, 26 insertions(+), 23 deletions(-)

diff --git a/msva-perl b/msva-perl
index 8d1657c..d22ea71 100755
--- a/msva-perl
+++ b/msva-perl
@@ -465,34 +465,34 @@ use strict;
           # needed because $gnupg spawns child processes
           $ENV{PATH} = '/usr/local/bin:/usr/bin:/bin';
 
+          # fingerprints of keys that are not fully-valid for this User ID, but match
+          # the key from the queried certificate:
+          my @subvalid_key_fprs;
+
           while (1) {
             foreach my $gpgkey ($gnupg->get_public_keys('='.$uid)) {
-              my $notvalid = 1;
+              my $validity = '-';
               foreach my $tryuid ($gpgkey->user_ids) {
                 if ($tryuid->as_string eq $uid) {
-                  $notvalid = 0
-                    if ($tryuid->validity eq 'f' ||
-                        $tryuid->validity eq 'u');
+                  $validity = $tryuid->validity;
                 }
               }
-              if ($notvalid) {
-                msvalog('verbose', "got a key that was not fully-valid for UID %s\n", $uid);
-              } else {
-                $foundvalid = 1;
-                if ($gpgkey->usage_flags =~ /a/) {
-                  msvalog('verbose', "primary key 0x%s is authentication-capable\n", $gpgkey->hex_id);
-                  if (keycomp($key, $gpgkey)) {
-                    msvalog('verbose', "...and it matches!\n");
-                    $ret->{valid} = JSON::true;
-                    $ret->{message} = sprintf('Successfully validated "%s" through the OpenPGP Web of Trust.', $uid);
-                  }
-                }
-                foreach my $subkey ($gpgkey->subkeys) {
-                  msvalog('verbose', "subkey 0x%s is authentication-capable\n", $subkey->hex_id);
-                  if (keycomp($key, $subkey)) {
-                    msvalog('verbose', "...and it matches!\n");
-                    $ret->{valid} = JSON::true;
-                    $ret->{message} = sprintf('Successfully validated "%s" through the OpenPGP Web of Trust.', $uid);
+              # treat primary keys just like subkeys:
+              foreach my $subkey ($gpgkey, @{$gpgkey->subkeys}) {
+                my $primarymatch = keycomp($key, $subkey);
+                if ($primarymatch) {
+                  if ($subkey->usage_flags =~ /a/) {
+                    msvalog('verbose', "key matches, and 0x%s is authentication-capable\n", $subkey->hex_id);
+                    if ($validity =~ /^[fu]$/) {
+                      $foundvalid = 1;
+                      msvalog('verbose', "...and it matches!\n");
+                      $ret->{valid} = JSON::true;
+                      $ret->{message} = sprintf('Successfully validated "%s" through the OpenPGP Web of Trust.', $uid);
+                    } else {
+                      push(@subvalid_key_fprs, { fpr => $subkey->fingerprint, val => $validity }) if $lastloop;
+                    }
+                  } else {
+                    msvalog('verbose', "key matches, but 0x%s is not authentication-capable\n", $subkey->hex_id);
                   }
                 }
               }
@@ -500,10 +500,13 @@ use strict;
             if ($lastloop) {
               last;
             } else {
-              fetch_uid_from_keyserver($uid);
+              fetch_uid_from_keyserver($uid) if (!$foundvalid);
               $lastloop = 1;
             }
           }
+          foreach my $keyfpr (@subvalid_key_fprs) {
+            msvalog('verbose', "Found sub-valid key 0x%s (validity %s)\n", $keyfpr->{fpr}->as_hex_string, $keyfpr->{val});
+          }
         }
       } else {
         msvalog('error', "failed to decode %s\n", unpack('H*', $cert->pubkey()));

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